Primitive arthropods, Biology

Assignment Help:

Primitive Arthropods

The primitive arthropods, Onychophora (for example Peripatus) have a series of paired legs which are not jointed but have a ringed appearance because of the presence of rows of papillae on them. Each leg consists of two parts, a conical proximal part along with their extrinsic muscles, and a small distal part comprising a pair of claws.

183_Primitive Arthropods.png

Figure: Peripatus lateral view of head

The limbs are protracted and retracted. Using these legs, and through extension and contraction of the body for working the legs they crawl. While a segment is extended, the legs are lifted and moved forward; subsequent effective stroke provides the animals a pushing force.


Related Discussions:- Primitive arthropods

Effects of kwashiorkor on children, Effects of Kwashiorkor on children ...

Effects of Kwashiorkor on children Kwashiorker is an African word- it means displaced child. The child is weaned out very early and is given foods having high amounts of carboh

Explain about podophyllum, Q. Explain about Podophyllum? These species ...

Q. Explain about Podophyllum? These species were long used by indigenous people in Americea and Asia, including for the treatment of skin cancers and warts. The combination of

Skeletal biology, What is Skeletal Biology? What is specification of Skelet...

What is Skeletal Biology? What is specification of Skeletal Biology? Describe please.

About ribosome, Which type Ribosome occurs exclusivley in Mitocondria?

Which type Ribosome occurs exclusivley in Mitocondria?

Nutrition in organisms, a project on different types of heterotrophic mode ...

a project on different types of heterotrophic mode of nutrition in organisms

Symptoms of hiatus hernia, Q. Symptoms of hiatus hernia? In most patien...

Q. Symptoms of hiatus hernia? In most patients, no symptoms are seen. When symptoms do occur, they are: 1. discomfort after heavy meal, 2. Difficulty in breathing while l

Importance of intestinal bacterial synthesis - vitamin k, Define Importance...

Define Importance of Intestinal Bacterial Synthesis as a Source of Vitamin K? Intestinal microflora synthesizes large amounts of menaquinones, which are potentially available a

What is punnett squares in genetics, What is Punnett Squares in genetics? ...

What is Punnett Squares in genetics? The probability, or likelihood, that a certain phenotypic or genotypic trait will appear in offspring can be predicted and diagrammed using

Defects of nervous system, DEFECT S OF NERVOUS SYSTEM - 1.      Ataxi...

DEFECT S OF NERVOUS SYSTEM - 1.      Ataxia - Lack of muscle-cordination due to damage of cerebellum. 2.      Dyslexia - In ability of a person to comprehense written l

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd